Hard Start, High Idle, stumbling B230F

[walterinwi]

Hello everyone,
first post from a guy in the states, you have more activity than 240 forums over here. I hope you can help me.
My car starts hard when cold, when it starts it's rpm's are way up there for about 3 to 4 min. and then she settles down to a normal idle speed, when I accelerate its as if i'm "pedaling" the throtle when my foot is steady....it accelerates...falls flat on her face...accelerates...falls flat on her face, when cruising speeds it runs fine..its almost as if I had an old points type ignition and had the dwell way off...advances...retards...advances...retards...et c. I hope you can understand what i'm describing.
New spark plugs, wires, cap, rotor, both fuel pumps, fuel filter, Oxygen sensor (3 wire) installed a little over a year ago, and the above symptoms were not present before or after that work.
It started hard after a fuel stop one day, I opened the hood and found a couple of vacuum lines had popped off, and she hasn't been running the same since then. I have pulled codes; 221, 123, 113, off the ECU, 224, off the EZ116K ignition. I have replaced the ECU temp sensor, I have cleaned the MAF(heated wire), Idle Control Valve, Throtle Body, flame arrestor, all vacuum lines, disconnected every electrical connection, safely cleaned with proper cleaner, and protected with CRC 2 26, a spray lubricant that protects metals from corrosion and improves conductivity, under the hood and my dash.
I should also state that there is nothing in my catalytic converter housing...she has 150,000 miles on her, I assume it's contents have burned away some time ago....I know this because thats where my oxygen sensor goes into, I also removed what was left of my 2" preheater hose from the exhaust manifold and my airbox. I have removed and cleaned my throttle position sensor, nothingf has changed....any ideas? any one ever have this problem? Thanks in advance Paul.

[Numnuts]

Hi, are you sure you got all those hoses back on?. I'd have another poke around just to check.

[ALLOA]

Any splits in the hoses would also have a huge affect (sometimes difficult to spot). You ppear to have changed most things but have you looked at the crankcase sensor? This is the one that sits on top of the bell housing / gearbox. Quite cheap to replace.

Best of luck

Scott

[walterinwi]

Thanks, I've been under the hood, and under the dash everyday for about 3 weeks now after returning home from work. Its getting colder in the mornings and I need to fix this problem before I'm covered in the white stuff.

[marcmarel]

You from US of A? Check the Brickboard, huge amount of info there and very active forum too. http://www.brickboard.com/FAQ/700-90...InjectionFault

You can ignore 221 and 113, these are consequences of the main problem.

LH 1-2-3* Signal missing to/from coolant temp. sensor Wiring fault to or in ECT sensor;grounds corroded on intake manifold or engine Difficult to start engine when cold

EZK 2-2-4 Engine coolant temp (ECT) sensor signal absent or faulty Faulty wiring or ECT sensor

Both point to the same thingy, I think you should examine that further. It has two sensors under the inlet, one for ecu, one for gauge. Are you sure you renewed the right one? Also recheck the wiring and the connectors.